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Epsilon (US: / ˈ ɛ p s ɪ l ɒ n /, [1] UK: / ɛ p ˈ s aɪ l ə n /; [2] uppercase Ε, lowercase ε or ϵ; Greek: έψιλον) is the fifth letter of the Greek alphabet, corresponding phonetically to a mid front unrounded vowel IPA: or IPA:. In the system of Greek numerals it also has the value five. It was derived from the Phoenician ...
This is a list of letters of the Greek alphabet. The definition of a Greek letter for this list is a character encoded in the Unicode standard that a has script property of "Greek" and the general category of "Letter". An overview of the distribution of Greek letters is given in Greek script in Unicode.
The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BC. [2] [3] It was derived from the earlier Phoenician alphabet, [4] and is the earliest known alphabetic script to have developed distinct letters for consonants as well as vowels. [5]
In addition, the red alphabet also introduced letters for the aspirates, Φ = /pʰ/ and Ψ = /kʰ/. Note that the use of Χ in the "red" set corresponds to the letter "X" in Latin, while it differs from the later standard Greek alphabet, where Χ stands for /kʰ/, and Ψ stands for /ps/. Only Φ for /pʰ/ is common to all non-green alphabets.
Some ancient Greek scholars argued that the Greek alphabet should not be attributed to the Phoenician alphabet. Diodorus Siculus in his Historical Library, Book 5, suggests that the Phoenicians merely "changed the form and shape" of earlier letters:
He is the fifth letter of the Semitic abjads, including Arabic hāʾ ه , Aramaic hē 𐡄, Hebrew hē ה , Phoenician hē 𐤄, and Syriac hē ܗ. Its sound value is the voiceless glottal fricative ([h]). The proto-Canaanite letter gave rise to the Greek Epsilon Ε ε, [1] Etruscan 𐌄, Latin E, Ë and Ɛ, and Cyrillic Е, Ё, Є, Э ...
The Bayer designation naming scheme for stars typically uses the first Greek letter, α, for the brightest star in each constellation, and runs through the alphabet before switching to Latin letters. In mathematical finance, the Greeks are the variables denoted by Greek letters used to describe the risk of certain investments.
The 2020 Atlantic hurricane season was so active that forecasters resorted to naming storms with letters from the Greek alphabet for only the second time in history. Turns out, it was the final ...